Physico-mechanical properties of carbonated concrete

被引：68
|
作者：
Jerga, J [1 ]
机构：
[1] Slovak Acad Sci, Inst Construct & Architecture, Bratislava 84503 45, Slovakia
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2004年 / 18卷 / 09期
关键词：
carbonation; density; stress-strain diagram; shrinkage;
D O I：
10.1016/j.conbuildmat.2004.04.029
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The experimental study of the influence of carbonation on mechanical properties of cement concrete is reported. Accelerated carbonation tests in hermetic chambers at enhanced concentration Of CO2 Were performed. Four series of concrete specimens with different concrete mix proportions and curing conditions are compared. Increase of density, strength, modulus of elasticity and shrinkage due to carbonation was found out. The magnitudes of changes were proportional to the cement content in fresh composites. The brittle failure of carbonated concrete was observed. Rates of increase are compared by use of hyperbolic approximation parameters. The increase of shrinkage increments was slower than that of density increments. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：645 / 652
页数：8
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